[clang] a955426 - [clang][bytecode] Handle UsingDirectiveDecls (#128888)

[via cfe-commits]

Author: Timm Baeder
Date: 2025-02-26T16:55:15+01:00
New Revision: a955426a16bcbb9bf05eb0e3894663dff4983b00

URL: https://github.com/llvm/llvm-project/commit/a955426a16bcbb9bf05eb0e3894663dff4983b00
DIFF: https://github.com/llvm/llvm-project/commit/a955426a16bcbb9bf05eb0e3894663dff4983b00.diff

LOG: [clang][bytecode] Handle UsingDirectiveDecls (#128888)

By ignoring them.

Added: 
    

Modified: 
    clang/lib/AST/ByteCode/Compiler.cpp
    clang/test/AST/ByteCode/literals.cpp

Removed: 
    


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diff  --git a/clang/lib/AST/ByteCode/Compiler.cpp b/clang/lib/AST/ByteCode/Compiler.cpp
index de0ce8b2644d3..4cf6a48edd5e0 100644
--- a/clang/lib/AST/ByteCode/Compiler.cpp
+++ b/clang/lib/AST/ByteCode/Compiler.cpp
@@ -5107,7 +5107,7 @@ template <class Emitter>
 bool Compiler<Emitter>::visitDeclStmt(const DeclStmt *DS) {
   for (const auto *D : DS->decls()) {
     if (isa<StaticAssertDecl, TagDecl, TypedefNameDecl, BaseUsingDecl,
-            FunctionDecl, NamespaceAliasDecl>(D))
+            FunctionDecl, NamespaceAliasDecl, UsingDirectiveDecl>(D))
       continue;
 
     const auto *VD = dyn_cast<VarDecl>(D);

diff  --git a/clang/test/AST/ByteCode/literals.cpp b/clang/test/AST/ByteCode/literals.cpp
index a80ee7ad84fc7..f206f020ecb47 100644
--- a/clang/test/AST/ByteCode/literals.cpp
+++ b/clang/test/AST/ByteCode/literals.cpp
@@ -1330,3 +1330,14 @@ void localConstexpr() {
   static_assert(a == 0, ""); // both-error {{not an integral constant expression}} \
                              // both-note {{initializer of 'a' is not a constant expression}}
 }
+
+namespace Foo {
+  namespace Bar {
+    constexpr int FB = 10;
+  }
+}
+constexpr int usingDirectiveDecl() {
+  using namespace Foo::Bar;
+  return FB;
+}
+static_assert(usingDirectiveDecl() == 10, "");